red or green / total
4 + 10 / 4 +16 +5 +16 +10
14 / 51
Answer:
x= -1
y = 9
Step-by-step explanation:
to solve this system of equation
let
x - 2y = -19.....................................equation 1
-3x + 5y = 48 .................................. equation2
from equation 1
x - 2y = -19.....................................equation 1
x = -19 + 2y................................... equation 3
substitute the value of x into equation 2
-3x + 5y = 48 .................................. equation2
-3(-19 + 2y) + 5y = 48
57 - 6y + 5y = 48
combine the like terms
-6y + 5y = 48 -57
-y = - 9
divide both side by -
y = 9
put y= 9 into equation 3
x = -19 + 2y................................... equation 3
x = -19 + 2(9)
x = -19 + 18
x = -1
therefore the value of x and y is -1 and 9 respectively
Answer:
add the next frequency
Step-by-step explanation:
listen in ur class
If the slope was 1, the elevation would be 45°. So, we take 1/12 of 45°, giving us 3.75°.
Answer:
20 girls
Step-by-step explanation:
3:5; this means that if there were 8 students, 3 would be girls and 5would be girls. Using this info we can multiply the ratio by a umber that will turn the total amount of students to 32.
4(3:5)=12:20
12+20=32
12 boys and 20 girls in a class of 32 students.
